CN111577961B

CN111577961B - Valve sealing device

Info

Publication number: CN111577961B
Application number: CN202010337278.3A
Authority: CN
Inventors: 于培勇; 钱润金
Original assignee: Jinguangheng Environmental Protection Technology Nanjing Co ltd
Current assignee: Jinguangheng Environmental Protection Technology Nanjing Co ltd
Priority date: 2020-04-26
Filing date: 2020-04-26
Publication date: 2022-02-01
Anticipated expiration: 2040-04-26
Also published as: CN111577961A

Abstract

The invention discloses a valve sealing device, relates to the technical field of valve sealing, and aims to solve the problem that as the service time of a sealing structure in a valve in the prior art is increased continuously, the internal part structure of the valve is possibly corroded by a conveying medium, so that the sealing performance of the valve is reduced, and leakage occurs. The valve assembly includes the valve body, one side of valve body is provided with the output mouth of pipe, the opposite side of valve body is provided with the input mouth of pipe, and output mouth of pipe and input mouth of pipe and valve body fixed connection, the top of valve body is provided with the electromagnetism valve member, and the electromagnetism valve member passes through flange joint with the valve body, the top of electromagnetism valve member is provided with power controller box, and power controller box and electromagnetism valve member fixed connection, the below of valve body is provided with the backward flow valve member, and the backward flow valve member passes through flange joint with the valve body, the other end of backward flow valve member is provided with backflow pipeline, and backflow pipeline and backflow valve member fixed connection.

Description

Valve sealing device

Technical Field

The invention relates to the technical field of valve sealing, in particular to a valve sealing device.

Background

The valve is a device for controlling the direction, pressure and flow of fluid in a fluid system, and is a device which can control the flow of the medium in a pipeline or equipment by enabling or stopping the medium flow. Valves used for fluid control range from the simplest shut-off valves to the various valves used in extremely complex autonomous systems, ranging in variety and specification from the very tiny instrument valves up to industrial pipeline valves with nominal diameters of up to 10 m. The valve can be used for controlling various types of fluid such as water, steam, oil products, gas, slurry, various corrosive media, liquid metal, radioactive fluid and the like to flow, the working pressure of the valve can be from 0.0013MPa to 1000MPa of ultrahigh pressure, the working temperature can be from c-270 ℃ of ultralow temperature to 1430 ℃ of high temperature, and the control of the valve can adopt various transmission modes such as manual operation, electric operation, hydraulic operation, pneumatic operation, turbine operation, electromagnetic hydraulic operation, electrohydraulic operation, pneumatic hydraulic operation, spur gear, bevel gear drive and the like; the valve can be operated according to the preset requirement under the action of pressure, temperature or other forms of sensing signals, or can be simply opened or closed without depending on the sensing signals, and the valve can make the opening and closing piece perform lifting, sliding, swinging or rotating motion by depending on a driving or automatic mechanism, so that the size of the flow passage area of the valve can be changed to realize the control function of the valve.

However, as the use time of the sealing structure in the existing valve is increased, the internal part structure of the sealing structure can be corroded by the conveying medium, so that the sealing performance of the valve is reduced, and leakage occurs; thus, the present need is not met, and a valve seal assembly is provided.

Disclosure of Invention

The present invention provides a valve sealing device to solve the problem that as the sealing structure in the valve proposed in the above background art is used for a longer time, the internal part structure of the valve may be corroded by the conveying medium, which results in the reduction of the sealing performance of the valve member and the leakage.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a valve sealing device, includes the valve assembly, the valve assembly includes the valve body, one side of valve body is provided with the output mouth of pipe, the opposite side of valve body is provided with the input mouth of pipe, and output mouth of pipe and input mouth of pipe and valve body fixed connection, the top of valve body is provided with the electromagnetism valve member, and the electromagnetism valve member passes through flange joint with the valve body, the top of electromagnetism valve member is provided with the power control machine box, and power control machine box and electromagnetism valve member fixed connection, the below of valve body is provided with the backward flow valve member, and the backward flow valve member passes through flange joint with the valve body, the other end of backward flow valve member is provided with backflow pipeline, and backflow pipeline and backflow valve member fixed connection.

Preferably, the inside of valve body is provided with sealed valve pocket, the inside of sealed valve pocket is provided with the piston valve piece, and piston valve piece and sealed valve pocket sliding connection, the piston valve piece includes circular metal block, the surface of circular metal block is provided with the mouth of pipe sealing valve cover, the both ends of mouth of pipe sealing valve cover all are provided with the sealing rubber ring, and sealing rubber ring and mouth of pipe sealing valve cover pass through the draw-in groove with circular metal block and are connected.

Preferably, the height of the nozzle sealing valve sleeve is the same as the diameter of the outer rings of the output nozzle and the input nozzle.

Preferably, the sealing rubber ring and the pipe orifice sealing valve sleeve are attached to the sealing valve cavity, a sealing gasket is arranged at the top of the sealing valve cavity, and the sealing gasket is connected with the valve body through a clamping groove.

Preferably, a metal push rod is arranged above the piston valve block and connected with the piston valve block through a bolt, and an electromagnetic coil end is arranged at the other end of the metal push rod and fixedly connected with the metal push rod.

Preferably, the electromagnetic coil end is connected with the electromagnetic valve piece in a sliding mode through a sliding groove, an anode tube piece is arranged on one side inside the electromagnetic valve piece, a cathode tube piece is arranged on the other side inside the electromagnetic valve piece, and the anode tube piece and the cathode tube piece are connected with the electromagnetic valve piece through a clamping groove.

Preferably, a return spring is arranged below the piston valve block and connected with the backflow valve member through a limiting fixing groove, and the return spring is connected with the piston valve block and the backflow valve member through a clamping sleeve.

Preferably, the surface of backflow pipeline is provided with one-way check valve, and one-way check valve passes through flange joint with backflow pipeline, backflow pipeline's inboard is provided with rivers response element, and rivers response element passes through the screw connection with backflow pipeline.

Compared with the prior art, the invention has the beneficial effects that:

1. the invention can realize the opening and closing functions of the valve body by the up-and-down movement of the piston valve block, and the piston valve block is made up of round metal block and pipe orifice sealing valve bush and sealing rubber ring of the external surface, the pipe orifice sealing valve bush is regarded as the most main pipe orifice sealing structural member, use and have corrosion-resistant rubber to make, both ends of the sealing valve bush of pipe orifice are equipped with the sealing rubber ring, the sealing rubber ring locates at both ends of the round metal block, use and have corrosion-resistant rubber to make too, mainly cooperate with the pipe orifice sealing valve bush to finish the double seal operation after the valve member is opened and closed, and under the situation that the sealing rubber ring 19 and pipe orifice sealing valve bush 20 does not corrode and abrade, there is not any gap in the sealed rubber ring 19 and pipe orifice sealing valve bush 20 and sealed valve pocket 17 and laminated, thus reach the state of complete seal;

2. the height of the pipe orifice sealing valve sleeve is the same as the diameters of the outer rings of the output pipe orifice and the input pipe orifice, when the piston valve block rises to the top of the sealed valve cavity, the pipe orifice sealing valve sleeve on the outer side is attached to the output pipe orifice and the input pipe orifice, a medium cannot enter the sealed valve cavity from the input pipe orifice, the medium in the output pipe orifice cannot flow back, the inside of the sealed valve cavity is sealed, the closing operation of the whole valve is completed, when the piston valve block falls to the bottom of the sealed valve cavity, the piston valve block is parallel to the lowest ends of the output pipe orifice and the input pipe orifice, and the medium enters the upper half part of the sealed valve cavity from the input pipe orifice and then flows out from the output pipe orifice;

3. the electromagnetic valve is opened and closed through the electromagnetism, when the electromagnetic coil end is electrified, the electromagnetic coil end can move downwards along a pipe groove formed by the anode pipe piece and the cathode pipe piece to complete opening of the valve, when the electromagnetic coil end is powered off, the piston valve block loses pressure from the electromagnetic coil end, and the return spring below the piston valve block can jack the piston valve block upwards so as to complete closing of the valve.

Drawings

FIG. 1 is an overall front view of the present invention;

FIG. 2 is a schematic view of the overall valve closure configuration of the present invention;

FIG. 3 is a schematic view of the overall valve opening configuration of the present invention;

FIG. 4 is a schematic illustration of the piston valve block structure of the present invention;

fig. 5 is an enlarged structural diagram a of the present invention.

In the figure: 1. a valve assembly; 2. a valve body; 3. an output nozzle; 4. an input pipe orifice; 5. an electromagnetic valve element; 6. a power supply control box; 7. a return valve member; 8. a return line; 9. a one-way check valve; 10. the end of the electromagnetic coil; 11. a positive electrode segment; 12. a negative electrode segment; 13. a metal push rod; 14. a limiting fixing groove; 15. a return spring; 16. a piston valve block; 17. sealing the valve cavity; 18. a water flow sensing element; 19. sealing the rubber ring; 20. a pipe orifice sealing valve sleeve; 21. a circular metal block; 22. a gasket is provided.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-5, an embodiment of the present invention is shown: a valve sealing device comprises a valve component 1, wherein the valve component 1 comprises a valve body 2, one side of the valve body 2 is provided with an output pipe orifice 3 which is connected with an output pipeline of a medium, the other side of the valve body 2 is provided with an input pipe orifice 4 which is connected with an input pipeline of the medium, the output pipe orifice 3 and the input pipe orifice 4 are fixedly connected with the valve body 2, the integral structure can ensure the integral stability of the valve component, an electromagnetic valve component 5 is arranged above the valve body 2, the valve can realize remote control operation through the electromagnetic valve component 5, the electromagnetic valve component 5 is connected with the valve body 2 through a flange to ensure the sealing performance of the joint, the top of the electromagnetic valve component 5 is provided with a power supply controller box 6 which is connected with a power supply circuit through the power supply controller box 6, thereby realizing automatic control, the power supply controller box 6 is fixedly connected with the electromagnetic valve component 5, and a backflow valve component 7 is arranged below the valve body 2, and the backflow valve member 7 is connected with the valve body 2 through a flange, the other end of the backflow valve member 7 is provided with a backflow pipeline 8, the backflow pipeline 8 is fixedly connected with the backflow valve member 7, and the backflow valve member 7 can convey residual media inside the valve body 2 after being closed and media generated when slight leakage occurs inside the valve body 2 due to corrosion damage of a sealing piece back to the input pipeline again.

Further, a sealed valve cavity 17 is arranged inside the valve body 2, a piston valve block 16 is arranged inside the sealed valve cavity 17, the piston valve block 16 and the piston valve block 16 are connected with the sealed valve cavity 17 in a sliding mode, the opening and closing functions of the valve body 2 can be achieved through the up-and-down movement of the piston valve block 16, the piston valve block 16 comprises a circular metal block 21, the circular structure and the shape of the sealed valve cavity 17 are matched with each other, so that perfect fitting is achieved, a pipe orifice sealing valve sleeve 20 is arranged on the outer surface of the circular metal block 21, the pipe orifice sealing valve sleeve 20 serves as the most main pipe orifice sealing structural part and is made of corrosion-resistant rubber, sealing rubber rings 19 are arranged at two ends of the pipe orifice sealing valve sleeve 20, the sealing rubber rings 19 are located at two ends of the circular metal block 21 and are also made of corrosion-resistant rubber, and are mainly matched with the pipe orifice sealing valve sleeve 20 to achieve double sealing operation after the valve body is opened and closed, the sealing performance of the valve is improved, and the sealing rubber ring 19, the pipe orifice sealing valve sleeve 20 and the round metal block 21 are connected through the clamping groove, so that replacement and installation are facilitated.

Further, the height of the pipe orifice sealing valve sleeve 20 is the same as the outer ring diameter of the output pipe orifice 3 and the input pipe orifice 4, when the piston valve block 16 rises to the top of the sealed valve cavity 17, the pipe orifice sealing valve sleeve 20 on the outer side is attached to the output pipe orifice 3 and the input pipe orifice 4, at this time, the medium cannot enter the sealed valve cavity 17 from the input pipe orifice 4, the medium in the output pipe orifice 3 cannot flow back, the inside of the sealed valve cavity 17 is sealed, the closing operation of the whole valve is completed, when the piston valve block 16 descends to the bottom of the sealed valve cavity 17, the piston valve block 16 is parallel to the lowest end of the output pipe orifice 3 and the input pipe orifice 4, at this time, the medium enters the upper half part of the sealed valve cavity 17 from the input pipe orifice 4 and then flows out from the output pipe orifice 3.

Further, the sealing rubber ring 19 and the pipe orifice sealing valve sleeve 20 are attached to the sealing valve cavity 17, under the condition that the sealing rubber ring 19 and the pipe orifice sealing valve sleeve 20 are not corroded or abraded, no gap exists at the attachment position of the sealing rubber ring 19 and the pipe orifice sealing valve sleeve 20 and the sealing valve cavity 17, and therefore the completely sealed state is achieved, the sealing washer 22 is arranged at the top of the sealing valve cavity 17, the sealing washer 22 is connected with the valve body 2 through the clamping groove, the connection position of the electromagnetic valve member 5 and the valve body 2 is sealed through the sealing washer 22, and input media are prevented from flowing into the electromagnetic valve member 5 above the sealing valve cavity.

Further, a metal push rod 13 is arranged above the piston valve block 16, the metal push rod 13 is connected with the piston valve block 16 through a bolt, an electromagnetic coil end 10 is arranged at the other end of the metal push rod 13, the electromagnetic coil end 10 is fixedly connected with the metal push rod 13, and when the electromagnetic coil end 10 descends, the metal push rod 13 pushes the piston valve block 16 to move together, so that the opening and closing operations of the valve are realized.

Further, solenoid end 10 passes through spout sliding connection with solenoid valve member 5, and one side inside solenoid valve member 5 is provided with anodal section of jurisdiction 11, and the opposite side inside solenoid valve member 5 is provided with negative pole section of jurisdiction 12, and anodal section of jurisdiction 11 and negative pole section of jurisdiction 12 pass through the draw-in groove with solenoid valve member 5 and be connected, and after solenoid end 10 circular telegram, solenoid end 10 will move downwards along the pipe chase that anodal section of jurisdiction 11 and negative pole section of jurisdiction 12 formed, accomplishes opening of valve member.

Further, a return spring 15 is arranged below the piston valve block 16, the return spring 15 is connected with the backflow valve member 7 through a limit fixing groove 14, the return spring 15 is connected with the piston valve block 16 and the backflow valve member 7 through a clamping sleeve, after the electromagnetic coil end head 10 is powered off, the piston valve block 16 loses pressure from the electromagnetic coil end head 10, and the return spring 15 located below the piston valve block 16 jacks the piston valve block 16 upwards, so that the valve member is closed.

Further, the surface of backflow pipeline 8 is provided with one-way check valve 9, one-way check valve 9 can prevent that the medium among the pipeline from passing through backflow pipeline 8 and entering into the inside of valve body 2, and one-way check valve 9 passes through flange joint with backflow pipeline 8, backflow pipeline 8's inboard is provided with rivers inductive element 18, and rivers inductive element 18 passes through the screw connection with backflow pipeline 8, rivers inductive element 18 can detect the existence of liquid medium, when the valve closed back appears leaking, rivers inductive element 18 will give control terminal with sensor signal transmission.

The working principle is as follows: when the electromagnetic valve is used, the output pipe orifice 3 and the input pipe orifice 4 on two sides of the valve body 2 are respectively connected with output and input pipelines of a medium, then, the remote control operation is realized through the electromagnetic valve piece 5 above the valve body 2, a group of electromagnetic coil end heads 10 are arranged inside the electromagnetic valve piece, the electromagnetic coil end heads 10 are connected with a piston valve block 16 positioned in a sealed valve cavity 17 through a metal push rod 13, when the electromagnetic coil end heads 10 are electrified, the electromagnetic coil end heads 10 move downwards along a pipe groove formed by an anode pipe piece 11 and a cathode pipe piece 12 to complete the opening of the valve piece, a plurality of groups of reset springs 15 are arranged below the piston valve block 16, when the electromagnetic coil end heads 10 are powered off, the piston valve block 16 loses the pressure from the electromagnetic coil end heads 10, at the moment, the reset springs 15 positioned below the piston valve block 16 jack up the piston valve block 16 upwards, thereby completing the closing of the valve, the piston valve block 16 is composed of a circular metal block 21, a pipe orifice sealing valve sleeve 20 and a sealing rubber ring 19, the height of the pipe orifice sealing valve sleeve 20 is the same as the outer ring diameter of the output pipe orifice 3 and the input pipe orifice 4, when the piston valve block 16 rises to the top of the sealing valve cavity 17, the pipe orifice sealing valve sleeve 20 at the outer side will be attached to the output pipe orifice 3 and the input pipe orifice 4, at this time, the medium can not enter into the sealing valve cavity 17 from the input pipe orifice 4, the medium in the output pipe orifice 3 can not flow back, the inside of the sealing valve cavity 17 is sealed, the closing operation of the whole valve is completed, when the piston valve block 16 descends to the bottom of the sealing valve cavity 17, the piston valve block 16 will be parallel to the lowest end of the output pipe orifice 3 and the input pipe orifice 4, at this time, the medium enters into the upper half part of the sealing valve cavity 17 from the input pipe orifice 4 and then flows out from the output pipe orifice 3, the sealing rubber ring 19 is located at the sealing rubber ring 19 at the two ends of the circular metal block 21, and is mainly matched with the pipe orifice sealing valve sleeve 20 to complete double sealing operation after the valve is opened and closed, so that the sealing performance of the valve is improved, finally, a backflow valve 7 is arranged below the valve body 2, the backflow valve 7 can convey residual media inside the valve body 2 after the valve body is closed and media generated when slight leakage occurs due to corrosion damage of the sealing element inside the valve body 2 back to the pipeline, a group of one-way check valves 9 are arranged inside the backflow pipeline 8, and the one-way check valves 9 can prevent the media in the pipeline from entering the inside of the valve body 2 through the backflow pipeline 8.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A valve sealing device comprising a valve assembly (1), characterized in that: the valve component (1) comprises a valve body (2), an output pipe orifice (3) is arranged on one side of the valve body (2), an input pipe orifice (4) is arranged on the other side of the valve body (2), the output pipe orifice (3) and the input pipe orifice (4) are fixedly connected with the valve body (2), an electromagnetic valve (5) is arranged above the valve body (2), the electromagnetic valve (5) is connected with the valve body (2) through a flange, a power supply controller box (6) is arranged at the top of the electromagnetic valve (5), the power supply controller box (6) is fixedly connected with the electromagnetic valve (5), a backflow valve (7) is arranged below the valve body (2), the backflow valve (7) is connected with the valve body (2) through a flange, a backflow pipeline (8) is arranged at the other end of the backflow valve (7), and the backflow pipeline (8) is fixedly connected with the backflow valve (7), the inside of valve body (2) is provided with sealed valve pocket (17), the inside of sealed valve pocket (17) is provided with piston valve piece (16), and piston valve piece (16) and sealed valve pocket (17) sliding connection, piston valve piece (16) are including circular metal block (21), the surface of circular metal block (21) is provided with mouth of pipe sealing valve cover (20), the both ends of mouth of pipe sealing valve cover (20) all are provided with sealing rubber ring (19), and sealing rubber ring (19) and mouth of pipe sealing valve cover (20) are connected through the draw-in groove with circular metal block (21).

2. A valve seal assembly according to claim 1, wherein: the height of the pipe orifice sealing valve sleeve (20) is the same as the diameters of the outer rings of the output pipe orifice (3) and the input pipe orifice (4).

3. A valve seal assembly according to claim 1, wherein: the sealing rubber ring (19) and the pipe orifice sealing valve sleeve (20) are attached to and connected with the sealing valve cavity (17), a sealing gasket (22) is arranged at the top of the sealing valve cavity (17), and the sealing gasket (22) is connected with the valve body (2) through a clamping groove.

4. A valve seal assembly according to claim 1, wherein: a metal push rod (13) is arranged above the piston valve block (16), the metal push rod (13) is connected with the piston valve block (16) through a bolt, an electromagnetic coil end (10) is arranged at the other end of the metal push rod (13), and the electromagnetic coil end (10) is fixedly connected with the metal push rod (13).

5. The valve seal assembly of claim 4, wherein: the electromagnetic coil comprises an electromagnetic coil end (10) and an electromagnetic valve piece (5) which are connected in a sliding mode through a sliding groove, wherein an anode tube piece (11) is arranged on one side inside the electromagnetic valve piece (5), a cathode tube piece (12) is arranged on the other side inside the electromagnetic valve piece (5), and the anode tube piece (11) and the cathode tube piece (12) are connected with the electromagnetic valve piece (5) through clamping grooves.

6. A valve seal assembly according to claim 1, wherein: a return spring (15) is arranged below the piston valve block (16), the return spring (15) is connected with the backflow valve member (7) through a limiting fixing groove (14), and the return spring (15) is connected with the piston valve block (16) and the backflow valve member (7) through a clamping sleeve.

7. A valve seal assembly according to claim 1, wherein: the surface of backflow pipeline (8) is provided with one-way check valve (9), and one-way check valve (9) pass through flange joint with backflow pipeline (8), the inboard of backflow pipeline (8) is provided with rivers response element (18), and rivers response element (18) pass through the screw connection with backflow pipeline (8).